Judgment_paragraph 28 · Republic of Poland v European Parliament and Council of the European Union (C-626/18)

28It must be recalled that partial annulment of an EU act is possible only if the elements for which annulment is sought may be severed from the remainder of the act. In that regard, the Court has repeatedly held that the requirement of severability is not satisfied where the partial annulment of an act would have the effect of altering its substance (judgments of 12 November 2015, United Kingdom v Parliament and Council, C‑121/14, EU:C:2015:749, paragraph 20, and of 9 November 2017, SolarWorld v Council, C‑204/16 P, EU:C:2017:838, paragraph 36).